Download Mitsubishi Electric PKFY-P30NKMU-E Service manual
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS February 2009 No. OCH450 TECHNICAL & SERVICE MANUAL R410A R22 Indoor unit [Model names] PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E [Service Ref.] PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Note: • This manual describes only service data of the indoor units. • RoHS compliant products have <G> mark on the spec name plate. CONTENTS 1. PART NAMES AND FUNCTIONS .......... 2 2. SPECIFICATION ..................................... 4 3. OUTLINES AND DIMENSIONS .............. 8 4. WIRING DIAGRAM ............................... 11 5. REFRIGERANT SYSTEM DIAGRAM........12 6. MICROPROCESSOR CONTROL...............13 7. TROUBLESHOOTING .......................... 20 8. DISASSEMBLY PROCEDURE ............. 29 PARTS CATALOG (OCB450) INDOOR UNIT Model name indication 1 PART NAMES AND FUNCTIONS Indoor unit Louver Air outlet Vane Filter (Inside of Air intake) Air intake 2 Wired remote controller Display Section For purposes of this explanation, all parts of the display are shown as lit. During actual operation, only the relevant items will be lit. Day-of-Week “Sensor” indication Shows the current day of the week. Displayed when the remote controller sensor is used. Time/Timer Display Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, the time to be switched off is shown. “Locked” indicator Indicates that remote controller buttons have been locked. Identifies the current operation “Clean The Filter” indicator Shows the operating mode, etc. *Multilanguage display is available. To be displayed on when it is time to clean the filter. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER Indicates that operation from the remote controller has been prohibited by a master controller. FUNCTION FILTER °F°C °F°C “Centrally Controlled” indicator Timer indicators AFTER OFF ERROR CODE The indicator comes on if the corresponding timer is set. WEEKLY SIMPLE AUTO OFF ONLY1Hr. Fan Speed indicator Shows the selected fan speed. “Timer is Off” indicator Indicates that the timer is off. Up/Down Air Direction indicator The indicator shows the direction of the outcoming airflow. Room Temperature display Shows the room temperature. The room temperature display range is 46–102°F. The display blinks if the temperature is less than 46°F or 102°F or more. Ventilation indicator Appears when the unit is running in Ventilation mode. “One Hour Only” indicator Temperature Setting Shows the target temperature. Displayed if the airflow is set to Low or downward during COOL or DRY mode. (Operation varies according to model.) The indicator goes off in one hour, at which time the airflow direction also changes. Louver display Indicates the action of the swing louver. Does not appear if the louver is not running. (Power On indicator) Indicates that the power is on. Operation Section ON/OFF button Temperature setting buttons Down Fan Speed button Up Timer Menu button (Monitor/Set button) Filter button (<Enter> button) Mode button (Return button) TEMP. ON/OFF Set Time buttons Check button (Clear button) Back Ahead Timer On/Off button (Set Day button) Test Run button MENU BACK PAR-21MAA MONITOR/SET ON/OFF FILTER DAY CLOCK CHECK TEST OPERATION Airflow Up/Down button CLEAR Louver button ( Operation button) To return operation number Opening the lid Built-in temperature sensor Ventilation button ( Operation button) To go to next operation number Note: ● “PLEASE WAIT” message This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure. ● “NOT AVAILABLE” message This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have). If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as far as any of the indoor units is equipped with the function. 3 2 SPECIFICATION 2-1. SPECIFICATIONS Model Power source Cooling capacity (Nominal) PCFY-P15NKMU-E Power input Current input Heating capacity (Nominal ) Power input Current input *1 kW *1 Btu/h kW A *2 kW *2 Btu/h kW A 4.4 15,000 0.03 0.35 5.0 17,000 0.03 0.35 External finish External dimensions H x W x D Net weight Heat exchanger FAN mm in. kg (lb) Type x quantity External static press. Motor type Motor output Driving mechanism Airflow rate (Low-Mid2-Mid1-High) Sirocco fan × 2 m /min L/s cfm dB <A> (R22) Drain pump kit High efficiency filter External heater adapter i-see Sensor Wireless remote controller with i-see Sensor Wireless remote controller kit Remarks Installation Note : Indoor : Outdoor : Pipe length : Level difference : 0.090 0.095 Direct-driven by motor 14-15-16-18 20-22-25-28 233-250-267-300 333-367-417-467 494-530-565-636 703-777-883-989 31-33-35-37 34-37-40-43 10-11-12-13 167-183-200-217 353-388-424-459 29-32-34-36 ø6.35 (ø1/4) Flare ø6.35 (ø1/4) Flare ø12.7 (ø1/2) Flare ø12.7 (ø1/2) Flare ø9.52 ø9.52 ø15.88 ø15.88 mm(in.) Optional parts *1 Nominal cooling conditions 10.6 36,000 0.11 0.97 11.7 40,000 0.11 0.97 0 0 DC motor kW 3 PCFY-P36NKMU-E 230×1280×680 230×1600×680 9-1/16×50-3/8×26-3/4 9-1/16×63×26-3/4 32 (71) 36 (79) 38 (84) Cross fin (Aluminum fin and copper tube) Sirocco fan × 3 Sirocco fan × 4 Pa mmH 2O Noise level (Low-Mid2-Mid1-High) (measured in anechoic room) Insulation material Air filter Protection device Refrigerant control device Connectable outdoor unit (R410A) mm(in.) Diameter of Liquid (R22) refrigerant pipe (R410A) mm(in.) Gas Field drain pipe size Standard Document attachment Accessory 230×960×680 9-1/16×37-13/16×26-3/4 24 (53) PCFY-P24NKMU-E PCFY-P30NKMU-E 1-phase 208/230V 60Hz 7.0 8.8 24,000 30,000 0.04 0.09 0.41 0.83 7.9 10.0 27,000 34,000 0.04 0.09 0.41 0.83 MUNSELL (6.4Y 8.9/0.4) Polyeter sheet PP honeycomb Fuse LEV R410A, R22 CITY MULTI (ø3/8) Flare ø9.52 (ø3/8) Flare (ø3/8) Flare ø9.52 (ø3/8) Flare (ø5/8) Flare ø15.88 (ø5/8) Flare (ø5/8) Flare ø15.88 (ø5/8) Flare O.D. 26mm (1) 0.160 21-24-27-31 350-400-450-517 742-847-953-1095 36-39-42-44 ø9.52 (ø3/8) Flare ø9.52 (ø3/8) Flare ø15.88 (ø5/8) Flare ø19.05(ø3/4) Flare*3 Installation Manual, Instruction Book Drain joint socket PAC-SH83DM-E PAC-SH88KF-E PAC-SH84DM-E PAC-SH89KF-E PAC-SH90KF-E PAC-YU25HT PAC-SH91MK-E PAR-SA92MW-E PAR-SL93B-E Details on foundation work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual. *2 Nominal heating conditions 80°FDB/67°FWB (26.7°CDB/19.4°CWB) 95°FDB (35°CDB) 25 ft. (7.6 m) 0 ft (0 m) 70°FDB(21°CDB) 47°FDB/43°FWB (8.3°CDB/6.1°CWB) 25 ft. (7.6 m) 0 ft (0 m) * Due to continuing improvement, above specification may be subject to change without notice. 4 *3 Connect the joint (purchased locally) for R22 Unit converter kcal/h Btu/h cfm lb = kW × 860 = kW × 3,412 = m3/min × 35.31 = kg/0.4536 *Above specification data is subject to rounding variation. 2-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. Symbol PCFY-P15NKMU-E PCFY-P24NKMU-E Parts name PCFY-P30NKMU-E PCFY-P36NKMU-E Room temperature thermistor TH21 Resistance 30°F/15.8kΩ, 50°F/9.6kΩ, 70°F/6.0kΩ, 80°F/4.8kΩ, 90°F/3.9kΩ, 100°F/3.2kΩ Liquid pipe thermistor TH22 Resistance 30°F/15.8kΩ, 50°F/9.6kΩ, 70°F/6.0kΩ, 80°F/4.8kΩ, 90°F/3.9kΩ, 100°F/3.2kΩ Gas pipe thermistor TH23 Resistance 30°F/15.8kΩ, 50°F/9.6kΩ, 70°F/6.0kΩ, 80°F/4.8kΩ, 90°F/3.9kΩ, 100°F/3.2kΩ Fuse (Indoor controller board) FUSE 250V 6.3A 8-pole OUTPUT 90W 8-pole OUTPUT 95W Fan motor MF Vane motor MV MSBPC20 DC12V 300Ω/phase Drain-pump (Option) DP INPUT 10.8W 24 /Hr Drain float switch FS Open / Short detection DC 5V DC12V Stepping motor drive Port dimension ø3.2 (0~2000pulse) EFM-40YGME 8-pole OUTPUT 160W DC12V Stepping motor drive Port dimension ø5.2 (0~2000pulse) EFM-80YGME Linear expansion valve LEV Power supply terminal block TB2 (L1, L2, GR) Rated to 330V 30A Transmission terminal block TB5 (M1, M2, S) Rated to 250V 20A MA remote controller terminal block TB15 (1, 2) Rated to 250V 10A Note : Refer to WIRING DIAGRAM for the supplied voltage. 2-3. SOUND LEVEL PCFY-P•NKMU-E Service Ref. 3.3ft (1m) Measurement location 3.3ft (1m) * Measured in anechoic room. 5 Sound level at anechoic room : Low-Mid2-Mid1-High Sound level dB (A) PCFY-P15NKMU-E 29-32-34-36 PCFY-P24NKMU-E 31-33-35-37 PCFY-P30NKMU-E 34-37-40-43 PCFY-P36NKMU-E 36-39-42-44 2-4. NC CURVES PCFY-P24NKMU-E External static pressure : 0Pa Power source : 208V, 230V, 60Hz External static pressure : 0Pa Power source : 208V, 230V, 60Hz Middle2 Low High Middle1 70.0 65.0 60.0 NC-60 55.0 50.0 NC-50 45.0 40.0 NC-40 35.0 30.0 NC-30 25.0 20.0 15.0 10.0 63 Approximate minimum audible limit on continuous noise 125 NC-20 250 500 1k 2k 4k Octave band pressure level (dB) 0dB=20μPa Octave band pressure level (dB) 0dB=20μPa PCFY-P15NKMU-E 65.0 60.0 NC-60 55.0 50.0 NC-50 45.0 40.0 NC-40 35.0 30.0 NC-30 25.0 20.0 15.0 10.0 63 8k Octave band center frequencies (Hz) Middle2 Low High Middle1 70.0 Approximate minimum audible limit on continuous noise 125 250 NC-20 500 1k 2k Octave band center frequencies (Hz) External static pressure : 0Pa Power source : 208V, 230V, 60Hz External static pressure : 0Pa Power source : 208V, 230V, 60Hz Middle2 Low High Middle1 70.0 65.0 60.0 NC-60 55.0 50.0 NC-50 45.0 40.0 NC-40 35.0 30.0 NC-30 25.0 20.0 15.0 10.0 63 Approximate minimum audible limit on continuous noise 125 250 NC-20 500 1k 2k 4k Octave band center frequencies (Hz) 8k Octave band pressure level (dB) 0dB=20μPa PCFY-P36NKMU-E Octave band pressure level (dB) 0dB=20μPa PCFY-P30NKMU-E 4k Middle2 Low High Middle1 70.0 8k 65.0 60.0 NC-60 55.0 50.0 NC-50 45.0 40.0 NC-40 35.0 30.0 NC-30 25.0 20.0 15.0 10.0 63 6 Approximate minimum audible limit on continuous noise 125 250 NC-20 500 1k 2k 4k Octave band center frequencies (Hz) 8k 2-5. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PCFY-P15NKMU-E How to read curves -50(-20) Curve in the graphs A 0 -100(-40) Q -150(-60) -200(-80) 2 C A -250(-100) -300(-120) 0 Duct characteristics at site B 1 0 1 2 50 3 4 [CMM] Q [CFM] 100 Airflow rate A D 3 Q Qa Static pressure[Pa(in.W.G.×10ˉ²] ■ PCFY-P24NKMU-E 50(20) 0 -50(-20) -100(-40) -150(-60) -200(-80) -250(-100) -300(-120) 0 1 2 50 3 4 [CMM] [CFM] 100 Airflow rate Static pressure[Pa(in.W.G.×10ˉ²] ■ PCFY-P30, 36NKMU-E 50(20) 0 -50(-20) -100(-40) -150(-60) -200(-80) -250(-100) -300(-120) 0 1 2 50 3 100 4 [CMM] [CFM] Airflow rate 7 C 50(20) E Static pressure[Pa(in.W.G.×10ˉ²] ■ Q…Designed amount of fresh air intake <CMM(CFM)> A…Static pressure loss of fresh air intake duct system with airflow amount Q <Pa(in.W.G.x10-2)> B … Forced static pressure at air conditioner inlet with airflow amount Q <Pa(in.W.G.x10-2)> … C Static pressure of booster fan with airflow amount Q <Pa(in.W.G.x10-2)> D…Static pressure loss increase amount of fresh air intake duct system for airflow amount Q <Pa(in.W.G.x10-2)> E…Static pressure of indoor unit with airflow amount Q <Pa(in.W.G.x10-2)> Qa … Estimated amount of fresh air intake without D <CMM(CFM)> 7-1/2(190) 4-3/4(121) 2-15/16(75) 1 2 3 4 5 6 7 8 2 18-1/8(461) Φ4 -1 12 5) 8 120° 7 15-1/4(387) 1-1/2(38) 11/16(18) Electrical box 2 5/16(8) 1-7/8(48) 4 5-7/16(138) 1/16(2) 3-3/8(86) 9-11/16(246) 9-3/16(233) In case of the rear pipe arrangement, make sure to remove the shaded portions from the independent piece. Then put the independent piece back in initial position.(The heat exchanger might be clogged because of dust) Ceiling 3(76) 4-7/8(124) 7-1/2(190) Air outlet 1/16(2) Air intake Drainage When drain socket is installed 3-3/8(85) 1/16(1) Drainage pipe connection(1(26mm)I.D.) Drainage pipe connection(for the left arrangement) Knock out hole for left drain-piping arrangement Refrigerant-pipe connection(gas pipe side/flared connection) Refrigerant-pipe connection(liquid pipe side/flared connection) Knock out hole for upper drain pipe arrangement Knock out hole for fresh air intake Φ3-15/16(Φ100) Knock out hole for wiring arrangement Φ7/8(Φ22) Accessory...Drain socket (1(26mm) I.D.) When electrical box is pulled down 1-13/16(46) 3 5/1 6(Φ 4-15/16(126) 1-7/16(37) 10-1/4(260) 34-9/16(878) 7-3/16(182) 33-9/16(853) 37-13/16(960) 5-1/2(140) 36-1/16(917)(Suspension bolt pitch) 11/16(18) 1 5-7/8(150) Electrical box 5 2-7/16(62) 1/16(2) 3-3/8(85) 3-5/16(84) 10(254) 6 9-1/16(230) [FRONT VIEW] 26-3/4(680) 7-11/16(195) 3-1/8(80) 12-5/8(320) 3-7/16(88) 18-3/4(476) 8 2-1/4(57) 2(51) 9/16 14 i-see sensor When drain socket is installed Drainage 9-11/16(246) liquid Φ1/4(Φ6.35) gas Φ1/2(Φ12.7) 9-3/16(233) 8(203) 7-1/4(184) 9-5/16(236) NOTES. 1.Use M10 or W3/8 screw for anchor bolt. 2.Please be sure when installing the drain lift up mechanism(option parts), refrigerant pipe will be only upward. Emergency operation switch <Heating> DEFROST/STAND BY lamp Receiver Operation lamp Emergency operation switch <Cooling> In case of wireless remote controller and i-see sensor(Optional Parts) In case of wireless remote controller and i-see sensor (Optional Parts) 3/16(5) 3/8(10) PCFY-P15NKMU-E 26-3/4(680) 3 OUTLINES AND DIMENSIONS Unit : inch(mm) 7-1/2(190) 1-13/16(46) 1 2 3 4 5 6 7 8 3(76) 4-7/8(124) 8 120° 7 15-1/4(387) 1-1/2(38) 11/16(18) 10-1/4(260) 1-7/8(48) 9-11/16(246) 9-3/16(233) Drainage When drain socket is installed 1/16(1) Air intake 5-7/16(138) 1/16(2) 3-3/8(86) 3-3/8(85) 4 Drainage pipe connection(1(26mm)I.D.) Drainage pipe connection(for the left arrangement) Knock out hole for left drain-piping arrangement Refrigerant-pipe connection(gas pipe side/flared connection) Refrigerant-pipe connection(liquid pipe side/flared connection) Knock out hole for upper drain pipe arrangement Knock out hole for fresh air intake Φ3-15/16(Φ100) Knock out hole for wiring arrangement Φ7/8(Φ22) Accessory...Drain socket (1(26mm) I.D.) 2 18-1/8(461) Ceiling 4-3/4(121) In case of the rear pipe arrangement, make sure to remove the shaded portions from the independent piece. Then put the independent piece back in initial position.(The heat exchanger might be clogged because of dust) 5/16(8) When electrical box is pulled down 2 Electrical box 2-15/16(75) 3 Φ4 5) 6(Φ 12 -15 /1 4-15/16(126) 1-7/16(37) 1 7-1/12(190) 1/16(2) Air outlet 47-3/16(1198) 46-3/16(1173) 50-3/8(1280) 48-11/16(1237) (Suspension bolt pitch) 5-7/8(150) Electrical box 5 7-3/16(182) 5-1/2(140) 2-7/16(62) 1/16(2) 12-5/8(320) 3-3/8(85) 3-5/16(84) 10(254) [FRONT VIEW] 3-1/8(80) 3-7/16(88) 2-1/4(57) 26-3/4(680) 7-11/16(195) 26-3/4(680) 9 18-3/4(476) 6 2(51) 9/16 14 Drainage 9-3/16(233) 9-11/16(246) DEFROST/STAND BY lamp Receiver Operation lamp Emergency operation switch <Heating> liquid Φ3/8(Φ9.52) gas Φ5/8(Φ15.88) When drain socket is installed 7-7/8(200) NOTES. 1.Use M10 or W3/8 screw for anchor bolt. 2.Please be sure when installing the drain lift up mechanism(option parts),refrigerant pipe will be only upward. i-see sensor Emergency operation switch <Cooling> 9-5/16(236) 7-1/16(180) In case of wireless remote controller and i-see sensor(Optional Parts) In case of wireless remote controller and i-see sensor (Optional Parts) 3/16(5) 3/8(10) PCFY-P24NKMU-E Unit : inch(mm) 9-1/16(230) 11/16(18) 2 3 18-1/8(461) 4-3/4(121) 7-1/2(190) 1-13/16(46) 3(76) 4-7/8(124) 8 120° 7 15-1/4(387) 1-1/2(38) 11/16(18) 10-1/4(260) 3-3/8(85) 5-7/16(138) 1/16(2) 3-3/8(86) 6 7 8 5 1 2 3 4 1-7/8(48) 9-11/16(246) 9-3/16(233) 1/16(1) Drainage When drain socket is installed Electrical box 1/16(2) 7-1/2(190) Drainage pipe connection(1(26mm)I.D.) Drainage pipe connection(for the left arrangement) Knock out hole for left drain-piping arrangement Refrigerant-pipe connection (gas pipe side/flared connection) Refrigerant-pipe connection (liquid pipe side/flared connection) Knock out hole for upper drain pipe arrangement Knock out hole for fresh air intake Φ3-15/16(Φ100) Knock out hole for wiring arrangement Φ7/8(Φ22) Accessory...Drain socket (1(26mm)I.D.) 2 5/16(8) Air outlet 59-3/4(1518) 58-3/4(1493) 63(1600) 61-5/16(1557) (Suspension bolt pitch) 5-7/8(150) 4 In case of the rear pipe arrangement, make sure to remove the shaded portions from the independent piece. Then put the independent piece back in initial position.(The heat exchanger might be clogged because of dust) When electrical box is pulled down 2-15/16(75) Ceiling ) 12 5 5/1 6(Φ Φ4 -1 4-15/16(126) 1-7/16(37) Electrical box 5 11/16(18) [FRONT VIEW] 7-3/16 182 5-1/2 140 62 2-7/16 6 1/16(2) 3-3/8 85 3-5/16(84) Air intake 10(254) NOTES. 1.Use M10 or W3/8 screw for anchor bolt. 2.Please be sure when installing the drain lift up mechanism (option parts),refrigerant pipe will be only upward. 12-5/8(320) 3-7/16(88) 18-3/4(476) 1 2(51) 9/16 14 liquid Φ3/8(Φ9.52) gas Φ5/8(Φ15.88) When drain socket is installed Drainage 9-3/16(233) 9-11/16(246) 7-7/8(200) 7-1/16(180) 9-5/16(236) Emergency operation switch <Heating> DEFROST/STAND BY lamp Receiver Operation lamp Emergency operation switch <Cooling> In case of wireless remote controller and i-see sensor(Optional Parts) In case of wireless remote controller and i-see sensor (Optional Parts) 3/16(5) 3/8(10) 9-1/16(230) 3-1/8 80 26-3/4(680) 7-11/16(195) 2-1/4 57 10 26-3/4(680) PCFY-P30, 36NKMU-E Unit : inch(mm) 4 WIRING DIAGRAM PCFY-P15, 24, 30, 36NKMU-E LED on indoor board for service [LEGEND] NAME INDOOR CONTROLLER BOARD CONNECTOR EXTERNAL HEATER DAMPER REMOTE SWITCH CENTRALLY CONTROL REMOTE INDICATION SURGE ABSORBER FUSE (T6.3AL250V) CAPACITY CODE SWITCH MODE SELECTION MODEL SELECTION DRAIN LIFT UP MECHANISM (TEST MODE) AUX. RELAY DRAIN LIFT UP MECHANISM (OPTIONAL PARTS) VARISTOR LINEAR EXPANSION VALVE FAN MOTOR VANE MOTOR I-SEE SENSOR MOTOR(OPTIONAL PARTS) TERMINAL POWER SUPPLY BLOCK TRANSMISSION MA-REMOTE CONTROLLER THERMISTOR ROOM TEMP. DETECTION (32°F/15ΚΩ, 77°F/5.4ΚΩ Detect) SYMBOL TH22 TH23 A. B SWA SWC SW1 SW11 SW12 SW14 OPTIONAL PARTS W.B BZ LED1 LED2 RU SW1 SW2 DP FS A.B 3 2 1 1 2 3 4 5 6 7 8 910 SW12 SW11 9 0 1 7 8 7 8 4 5 6 1s DIGIT MODELS ON OFF P24 ON OFF P30 ON OFF 1 3 BRANCH No. 5 6 I-SEE SENSOR MOTOR CN6Y 1 (RED) 6 Pair No. P36 1 LEV CN60 (WHT) CN52 1 (GRN) 5 1 2 3 4 5 6 7 8 9 10 See fig.w1 8 1 2 1 M-NET CN2M (BLU) 12345 123456 SWE DSA ZNR02 DC294~325V RECTIFICATION CN24 (YLW) 9 1 2 FUSE CN25 (WHT) 1 2 LIQUID/PIPE CN44 1 (WHT) 4 CN41 1 (WHT) 4 INTAKE CN20 (RED) FLOAT SW CN4F 1 (WHT) 4 1 2 FAN CNMF (WHT) CN27 (RED) 1 2 7 4 9 I-SEE SENSOR 5 M 6 WHT YLW ORN BLU RED BRN 4 TB15 BLU 1 BLU 2 TO MA-REMOTE CONTROLLER DC8.7-13V CNB BZ LED2 SW1 MT I-SEE SENSOR (OPTIONAL PARTS) U LED1 6 CN51 1 (WHT) 5 CND (BLK) ZNR01 U WIRELESS CN90 (WHT) 1 PULL BOX TO NEXT INDOOR UNIT I.B ON OFF 1 2 3 4 5 6 7 8 910 FUSE(16A) 1 3 5 SW2 ON OFF 4 ADDRESS CN42 (RED) ADDRESS CN81 (RED) SW4 OFF ON 3 TB2 RED BLU L1 L2 GRN/YLW GR 1 2 3 4 5 6 1 BREAKER (16A) <w2> ON OFF ON OFF 4 LED2 1 POWER SUPPLY ~208-230V 60Hz TO OUTDOOR UNIT BC CONTROLLER REMOTE CONTROLLER DC24-30V (SHIELD) 1 2 3 4 5 6 1 MA REMOCON CN3A (BLU) I-SEE SENSOR CN4Y 1 (WHT) 4 Main Power supply (Indoor unit:208-230V) power on → lamp is lit Power supply for MA-Remote controller on → lamp is lit BLU TB5 M1 BLU M2 S 1 2 3 4 5 6 7 8 9 10 SW3 VANE CNV (WHT) Power supply for MA-Remote controller SW3 1 2 3 4 5 6 CN32 (WHT) J42 J41 20 18 16 14 12 10 8 6 4 2 Function LED2 ON OFF 1 2 3 4 5 6 8 (RED) SW14 ADDRESS CN82 SWC E F 0 1 8 19 17 15 13 11 9 7 5 3 1 SW2 P15 456 2 3 2 3 10ths DIGIT 5 2 1 Meaning Main power supply PCB FOR WIRELESS REMOTE CONTROLLER BUZZER LED (OPERATION INDICATION : GREEN) LED (PREPARATION FOR HEATING : ORANGE) RECEVING UNIT EMERGENCY OPERATION (HEAT / DOWN) EMERGENCY OPERATION (COOL / UP) DRAIN LIFT UP MECHANISM DRAIN FLOAT SWITCH 23 9 0 1 Mark LED1 <Fig. w1> 1 BCD M SWA SW1 4 ON OFF MV NAME THERMISTOR PIPE TEMP. DETECTION / LIQUID (32°F/15ΚΩ, 77°F/5.4ΚΩ Detect) PIPE TEMP. DETECTION / GAS (32°F/15ΚΩ, 77°F/5.4ΚΩ Detect) ADDRESS BOARD CEILING HEIGHT SELECTOR SWITCH OPTION SELECTOR MODE SELECTION ADDRESS SETTING 1s DIGIT ADDRESS SETTING 10ths DIGIT BRANCH No. (RED) 4 ADDRESS CN43 789A SYMBOL I. B CN24 CN27 CN32 CN51 CN52 DSA FUSE SW2 SW3 SW4 SWE X1 ZNR01,02 LEV MF MV MT TB2 TB5 TB15 TH21 W.B t° LED1 SW2 M LEV t° RU TH22 TH23 (OPTIONAL PARTS) When attaching drain lift up mechanism (optional parts), remove the jumper connector CN4F and fit the drain float switch (FS). When attaching drain lift up mechanism (optional parts) FLOAT SW CN4F (WHT) 1 t° MF 11 M DP (OPTIONAL PARTS) wBe sure to turn off the source power TH21 1 1~ 3~ and then disconnect fan motor connector. (Failure to do so will cause trouble in Fan motor) NOTES: 1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit. 2.In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.) 3.In case of using M-NET, please connect to TB5. (Transmission line is non-polar.) 4.Symbol [S] of TB5 is the shield wire connection. 5.Symbols used in wiring diagram above are, : terminal block, : connecter. 6.The setting of the SW2 dip switches differs in the capacity. For the detail, refer to fig.w1. <w2>Use copper supply wires. 1 MS 4 FS X1 D.U.M 3 CNP (BLU) 5 REFRIGERANT SYSTEM DIAGRAM PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Refrigerant flow in cooling Refrigerant flow in heating Gas pipe thermistor TH23 Strainer (#100 mesh) Gas pipe Flare connection Liquid pipe thermistor TH22 Liquid pipe Linear expansion valve Strainer1 (#50 mesh) Strainer2 (#100 mesh) Strainer (#100 mesh) Room temparature thermistor TH21 Heat exchanger Service Ref. PCFY-P15NKMU-E Item Unit : mm (inch) PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Gas pipe ø12.7 (1/2) ø15.88 (5/8) Liquid pipe ø6.35 (1/4) ø9.52 (3/8) 12 6 MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 6-1. COOL OPERATION <How to operate> Press POWER ON/OFF button. Press the operation MODE button to display COOL. Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the or pressed one time. Cooling 67 to 87°F TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ûFûC ûFûC WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET ON/OFF ON/OFF FILTER DAY CLOCK Control modes 1. Thermoregulating function CHECK TEST OPERATION CLEAR Control details 1-1. Thermoregulating function (Function to prevent restarting for 3 minutes) • Room temperature desired temperature + 2°F ···Thermo ON • Room temperature desired temperature ···Thermo OFF 1-2. Anti-freezing control Detected condition : When the liquid pipe temp. (TH22) is 32°F or less in 16 minutes from compressors start up, anti-freezing control starts and the thermo OFF. Released condition : The timer which prevents reactivating is set for 3 minutes, and anti-freezing control is cancelled when any one of the following conditions is satisfied. Liquid pipe temp. (TH22) turns 50°F or above. The condition of the thermo OFF has become complete by thermoregulating, etc. The operation modes became mode other than COOL. The operation stopped. 2. Fan button is By the remote controller setting (switch of 4 speeds+Auto) Type Fan speed notch 4 speeds + Auto type [Low], [Med2], [Med1], [High], [Auto] When [Auto] is set, fan speed is changed depending on the value of: Room temperature - Desired temperature 13 Remarks g g Control modes 3. Drain pump Remarks Control details 3-1. Drain pump control •Drain pump is always ON during the COOL and DRY mode operation. (Regardless of the thermo ON/OFF) •When the operation mode has changed from the COOL or DRY to the others (including Stop), the drain pump will be kept on for 3 minutes, then turns OFF. Float switch control • Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF. In the water: Detected that the float switch is ON for 15 seconds. In the air : Detected that the float switch is OFF for 15 seconds. Float SW ON OFF 15sec. In the water (up/down vane change) 15sec. 1min.30sec. In the air In the water 1min.30sec. Error postponement Drain pump abnormal (1) Initial setting: Start at COOL mode and horizontal vane. (2) Vane position: Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto → 4. Vane 15sec. (3) Restriction of the downward vane setting When setting the downward vane A, B, C or D in [Med1], [Med2], [Low] or [Auto] of the fan speed notch, the vane changes to horizontal position after 1 hour have passed. 14 · "ONLY 1 Hr" appears on the wired remote controller. 6-2. DRY OPERATION TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE FUNCTION FILTER ûFûC ûFûC WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET ON/OFF ON/OFF CHECK TEST OPERATION CLEAR Control modes Remarks Control details 1. Thermo regulating 1-1. Thermo regulating function (Function to prevent restarting for 3 minutes) Setting the Dry thermo by the thermo regulating signal and the room function temperature (TH21). Dry thermo ON Room temperature desired temperature + 2°F Dry thermo OFF Room temperature desired temperature Dry thermo Dry thermo 3 min. passed since starting operation Room ON OFF temperature Thermo regulating signal Room temperature (T1) time (min) time (min) ON Over 64°F T1 83°F 9 3 83°F > T1 79°F 7 3 79°F > T1 75°F 5 3 3 3 3 10 75°F > T1 OFF Unconditional Dry thermo OFF Less than 64°F 1-2. Freeze prevention control No control function 2. Fan Indoor fan operation controlled depending on the compressor conditions. Dry thermo Fan speed notch ON [Low] OFF Excluding the following Stop Room temp. < 64°F [Low] Note: Remote controller setting is not acceptable. 3. Drain pump button is FILTER DAY CLOCK <How to operate> Press POWER ON/OFF button. Press the operation MODE button to display DRY. Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the or pressed one time. Dry 67 to 87°F Same control as COOL operation Same control as COOL operation 4. Vane (up/down vane change) 15 6-3. FAN OPERATION <How to operate> Press POWER ON/OFF button. Press the operation MODE button to display FAN. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE ûFûC ûFûC WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET FUNCTION FILTER ON/OFF ON/OFF FILTER DAY CLOCK CHECK TEST OPERATION CLEAR Control modes 1. Fan Control details Remarks Set by remote controller. Type Fan speed notch 4 speeds + Auto type [Low], [Med2], [Med1], [High], [Auto] When [Auto] is set, fan speed becomes [Low]. 2. Drain pump 2-1. Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is met: ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode (FAN). ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water. 2-2. Float switch control • Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF. In the water : Detected that the float switch is ON for 15 seconds. In the air : Detected that the float switch is OFF for 15 seconds. 3. Vane Same as the control performed during the COOL operation, but with no restriction (up/down vane change) on the vane's downward blow setting 16 · Same control as COOL operation 6-4. HEAT OPERATION <How to operate> Press POWER ON/OFF button. Press the operation MODE button to display HEAT. Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the or pressed one time. Heating 63 to 83°F. TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE ûFûC ûFûC WEEKLY SIMPLE AUTO OFF ONLY1Hr. TEMP. MENU BACK PAR-21MAA MONITOR/SET FUNCTION FILTER ON/OFF ON/OFF <Display in HEAT operation> [DEFROST] The [DEFROST] symbol is only displayed during the defrost operation. [STANDBY] The [STANDBY] symbol is only displayed during the hot adjust mode. FILTER DAY CLOCK CHECK TEST OPERATION CLEAR Control modes 1. Thermoregulating function 2. Fan button is Remarks Control details 1-1. Thermoregulating function (Function to prevent restarting for 3 minutes) • Room temperature desired temperature -2°F ···Thermo ON • Room temperature desired temperature ···Thermo OFF By the remote controller setting (switch of 4 speeds+Auto) Type Fan speed notch 4 speeds + Auto type [Low], [Med2], [Med1], [High], [Auto] When [Auto] is set, fan speed is changed depending on the value of: Desired temperature - Room temperature Give priority to under-mentioned controlled mode 2-1. Hot adjust mode 2-2. Residual heat exclusion mode 2-3. Thermo OFF mode (When the compressor off by the thermoregulating) 2-4. Cool air prevention mode (Defrosting mode) 2-1. Hot adjust mode The fan controller becomes the hot adjuster mode for the following conditions. When starting the HEAT operation When the thermoregulating function changes from OFF to ON. When release the HEAT defrosting operation Hot adjust mode *1 *1 "STAND BY" will be displayed during the hot adjust mode. Set fan speed by the remote controller [Low] [Extra Low] A B C A: Hot adjust mode starts. B: 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95°F or more. C: 2 minutes have passed since the condition B. (Terminating the hot adjust mode) 2-2. Residual heat exclusion mode When the condition changes the auxiliary heater ON to OFF (thermoregulating or operation stop, etc), the indoor fan operates in [Low] mode for 1 minute. · This control is same for the model without auxiliary heater. To be continued on the next page. 17 From the preceding page Control details Control modes 2. Fan Remarks 2-3. Thermo OFF mode When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low]. 2-4. Heat defrosting mode The indoor fan stops. 3. Drain pump 3-1. Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is met: ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode (FAN). ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water. 3-2. Float switch control • Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF. In the water: Detected that the float switch is ON for 15 seconds. In the air : Detected that the float switch is OFF for 15 seconds. (1) Initial setting: OFF → HEAT···[last setting] When the last setting is [Swing] ··· [Downward D] When changing the mode from exception of HEAT to HEAT operation ···[Downward D] (2) Vane position: Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto → 4. Vane control (Up/down vane change) (3) Restriction of vane position The vane is horizontally fixed for the following modes. (The control by the remote controller is temporally invalidated and control by the unit.) •Thermo OFF •Hot adjust [Extra low] mode •Heat defrost mode 18 · Same control as COOL operation 6-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION] TIME SUN MON TUE WED THU FRI SAT TIMER Hr ON AFTER AFTER OFF ERROR CODE ûFûC ûFûC TEMP. MENU BACK PAR-21MAA MONITOR/SET FUNCTION FILTER WEEKLY SIMPLE AUTO OFF ONLY1Hr. ON/OFF ON/OFF button is FILTER DAY CLOCK <How to operate> Press POWER ON/OFF button. Press the operation MODE button to display AUTO. Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the or pressed one time. Automatic 67 to 83°F CHECK TEST OPERATION CLEAR Control details Control modes Remarks 1. Initial value of HEAT mode for room temperature < Desired temperature operation mode COOL mode for room temperature Desired temperature 2. Mode change (1) HEAT mode → COOL mode Room temperature Desired temperature + 3°F. or 3 min. has passed (2) COOL mode → HEAT mode Room temperature Desired temperature - 3°F. or 3 min. has passed 3. COOL mode Same control as cool operation 4. HEAT mode Same control as heat operation 6-6. WHEN UNIT IS STOPPED Control modes 1. Drain pump Control details Remarks 1-1. Drain pump control The drain pump turns ON for the specified amount of time when any of the following conditions is met: ON for 3 minutes after the operation mode is switched from COOL or DRY to another operation mode (FAN). ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water. 1-2. Float switch control • Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF. In the water : Detected that the float switch is ON for 15 seconds. In the air : Detected that the float switch is OFF for 15 seconds. 19 · Same control as COOL operation 7 TROUBLESHOOTING 7-1. HOW TO CHECK THE PARTS PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E Parts name Room temperature thermistor (TH21) Liquid pipe thermistor (TH22) Gas pipe thermistor (TH23) Disconnect the connector then measure the resistance using a tester. (At the ambient temperature 50"F~86"F) Vane motor (MV) Measure the resistance between the terminals using a tester. (At the ambient temperature of 68°F~86°F) White Orange Red Yellow Blue Drain pump (DP) (Option) YLW 1 3 YLW PCFY-P36NKMU-E Check points Drain float switch (FS) (Option) Normal Abnormal 4.3k~9.6k Open or short Connector Red - Yellow Red - Blue Red - Orange Red - White (Refer to the next page for a detail.) Normal Abnormal 300 Open or short Measure the resistance between the terminals using a tester. (Winding temperature 68°F) Normal 290 Abnormal Open or short Measure the resistance between the terminals using a tester. State of moving part Normal Abnormal 1 UP Short Other than short 2 DOWN Open Other than open Moving part Switch Magnet 3 Moving Part 4 i-see sensor (Option) Turn on the indoor unit with the black plastic tape on the outside of i-see sensor controller board. i-see sensor rotates then pull out the connector of motor for i-see sensor. With electricity being turned on, measure the power voltage between connectors with tester. Black plastic tape 4 3 2 1 i-see sensor (At the ambient temperature of 50°F~104°F) 4 3 2 i-see sensor connector 1 Blue BlackPink Brown (–)—(+) Normal DC 1.857V~ 3.132V Abnormal Other than the normal (+)—(–) DC 0.939V~ 1.506V Other than the normal NOTE : Be careful of handing such a static electricity. Vane motor for i-see sensor (Option) White Orange Red Blue Linear expansion valve (LEV) Yellow Blue Yellow White Red Connector Red - Yellow Red - Blue Red - Orange Red - White Normal Abnormal 250 Open or short Disconnect the connector then measure the resistance valve using a tester. Normal Brown M Measure the resistance between the terminals using a tester. (At the ambient temperature of 68°F~86°F) White-Red Yellow-Brown Abnormal Orange-Red 200 $10% Orange 20 Blue-Brown Open or short Refer to 7-1-2. 7-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > 50 Room temperature thermistor (TH21) Liquid pipe temperature thermistor (TH22) Gas pipe temperature thermistor (TH23) Thermistor R0=15kΩ ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 30°F 50°F 70°F 80°F 90°F 100°F 7-1-2. 1 273+(t-32)/1.8 40 Resistance (kΩ) Thermistor for lower temperature 1 )} 273 15.8kΩ 9.6kΩ 6.0kΩ 4.8kΩ 3.9kΩ 3.2kΩ 30 20 10 0 -20 0 20 40 60 80 Temperature (°F) 100 120 Linear expansion valve Operation summary of the linear expansion valve • Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board. • Valve position can be changed in proportion to the number of pulse signals. <Connection between the indoor controller board and the linear expansion valve> Controller board DC12V Brown 6 Red 5 Φ4 Blue 4 Φ4 Φ3 Orange 3 Φ3 Φ2 Yellow 2 Φ2 Φ1 White 1 Φ1 Linear expansion valve 4 M 6 5 2 1 White Red 3 Orange Blue Brown Yellow Connector(CN60) 21 Drive circuit <Output pulse signal and the valve operation> Output Output (Phase) 1 ON ON OFF OFF Φ1 Φ2 Φ3 Φ4 2 OFF ON ON OFF 3 OFF OFF ON ON 4 ON OFF OFF ON Linear expansion valve operation Note: • When linear expansion valve operation stops, all output phase become OFF. • At phase interruption or when phase does not shift in order, motor does not rotate smoothly and motor will lock and vibrate. • When the switch is turned on, 2200 pulse closing valve signal will be sent till it goes to point in order to define the valve position. Open C D Valve position (capacity) Closing a valve : 1 → 2 → 3 → 4 → 1 Opening a valve : 4 → 3 → 2 → 1 → 4 The output pulse shifts in above order. • When the valve moves smoothly, there is no sound or vibration occurring from the linear expansion valves, however, when the pulse number moves from to or when the valve is locked, more sound can be heard than in a normal situation. • Sound can be detected by placing the ear against the screw driver handle while putting the screw driver tip to the linear expansion valve. Close Open Outdoor unit R410A model : 1400 pulse Outdoor unit R22 model : 2000 pulse Opening a valve all the way A E Close B Pulse number Extra tightening (200~800 pulse) Trouble shooting Symptom Check points Countermeasures Operation circuit failure of the micro processor Disconnect the connector on the controller board, then con- Exchange the indoor connect LED for checking. troller board at drive circuit 6 5 failure. 4 3 2 1 1kΩ LED When power is turned on, pulse signals will be output for 10 seconds. There must be some defects in the operation circuit if the LED does not light while the signals are output or keeps lighting even after the signals stop. Linear expansion valve mechanism is locked. Motor will idle and make a ticking noise when the motor is operated while the linear expansion valve is locked. This ticking sound is the sign of the abnormality. Exchange the linear expansion valve. Short or breakage Measure the resistance between each coil (white-red, yellow- Exchange the linear expanof the motor coil of brown, orange-red, blue-brown) using a tester. It is normal if sion valve. the linear expansion the resistance is in the range of 200Ω ±10%. valve Valve does not close To check the linear expansion valve, operate the indoor unit If large amount of refrigercompletely. in fan mode and at the same time operate other indoor units ant is leaked, exchange the linear expansion valve. in cooling mode, then check the pipe temperature <liquid pipe temperature> of the indoor unit by the outdoor multi controller board operation monitor. During fan operation, linear expansion valve is closed completely and if there Thermistor (Liquid pipe) is any leaking, detecting temperature of the thermistor will go lower. If the detected Linear temperature is much lower than the temexpansion valve perature indicated in the remote controller, it means the valve is not closed all the way. It is not necessary to exchange the linear expansion valve, if the leakage is small and not affecting normal operation. Wrong connection of the connector or contact failure Check the color of lead wire and missing terminal of the con- Disconnect the connector nector. at the controller board, then check the continuity. 22 7-1-3. DC Fan motor (fan motor/indoor controller circuit board) Check method of DC fan motor (fan motor/indoor controller circuit board) Notes · High voltage is applied to the connecter (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for the motor with the power supply on. (It causes trouble of the indoor controller circuit board and fan motor.) Self check Symptom : The indoor fan cannot turn around. Wiring contact check Contact of fan motor connector (CNMF) Is there contact failure? Wiring recovery Yes No Power supply check (Remove the connector (CNMF)) Measure the voltage in the indoor controller circuit board. TEST POINT : VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC294~325V TEST POINT : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC15V Is the voltage normal? Indoor controller board fuse check No No Is the fuse normal? Replace the fuse Yes OK Check the operation Yes Sensor signal check Measure the voltage between CNMF and DC 0V and DC 15V in the indoor controller circuit board. Replace indoor controller board. OK Check the operation END NG No Does the voltage repeat DC 0V and DC 15V? NG Replace the fan motor Yes Replace indoor controller board Replace the fan motor OK OK Check the operation Check the operation END NG NG Replace the fan motor. Replace indoor controller board. 23 END END 7-2. FUNCTION OF DIP SWITCH Switch Pole SW1 Function setting Operation by switch Function ON OFF 1 Thermistor <Room temperature detection> position Built-in remote controller Indoor unit 2 Filter clogging detection Provided Not provided 3 Filter cleaning 2,500 hr 100 hr 4 Fresh air intake Effective Not effective 5 Switching remote display Indicating fan operation Thermo ON signal display ON/OFF 6 Humidifier control 7 Low 3 8 Airflow set in case of Heat thermo OFF at heating mode 9 Auto restart function Effective Not effective Power ON/OFF by breaker Effective Not effective 10 Capacity P15 SW2 Capacity code 1~6 setting P30 ON OFF Extra low Setting air flow Capacity P24 1 2 3 4 5 6 P36 1 2 3 4 5 6 3 ON OFF ON OFF 1 2 3 4 5 6 7 8 9 10 Note : 1 Fan operation at heating mode 2 Thermo ON operation at heating mode 3 3 SW1-7 OFF ON OFF ON Depends on SW1-7 SW1-8 OFF OFF ON ON Extra low Low Setting airflow Stop Indoor controller board SW 2 ON OFF Remarks Address board <Initial setting> Under Always operated while the heat in ON 1 Operated depends on the condition 2 suspension SW 2 ON OFF Effective timing Set while the unit is off. Before power supply ON 1 2 3 4 5 6 1 2 3 4 5 6 1 Heat pump/Cooling only Cooling only Heat pump 2 Louver Available Not available <Initial setting> Set for each capacity. Indoor controller board Set while the unit is off. SW3 Function setting 3 Vane Available Not available 4 Vane swing function in heating Available (wave-flow) Not available 5 Vane horizontal angle Second setting 4 First setting 4 6 Vane cooling limit angle setting Horizontal Setting A,B,C,D 7 Changing the opening of linear expansion valve 4-deg up (Heating mode) Effective Not effective Not effective Effective 8 9 Superheat setting temperature 5 10 Sub cool setting temperature 5 SW4 Model 1~5 Selection — — — — In case of replacing the indoor controller board, make sure to set the switch to the initial setting, which is shown below. ON OFF 1 2 3 4 5 <Initial setting> ON OFF Note : 4 SW3-5 Under suspension Vane setting Set up Set up Initial setting Setting Standard Less draft ● Vane position Standard Upward position than the standard 24 5 Please do not use SW-3-9,10. SW9 setting P15: ON P24,P30,P36: OFF 6 Each angle can be used only 1 hour when fan speed setting Low and Middle 1,2 Indoor controller board Before power supply ON Note : 4 SW3-5 SW3-5 OFF ON 1 2 3 4 5 6 7 8 9 10 Switch Pole Operation by switch (High ceiling) SWA Ceiling 1~3 (Standard) height selector (Silent) * Ceiling height can be changed depending on SWA setting. 3 2 1 SWA P15, P24 P30, P36 Effective timing Remarks Address board Under operation or suspension <Initial setting> 3 2 1 Silent Standard High ceiling 8.2ft.(2.5m) 8.9ft.(2.7m) 11.5ft.(3.5m) 8.5ft.(2.6m) 9.8ft.(3.0m) 13.8ft.(4.2m) Address board 90 1 BCDE <Initial setting> SW14 F01 45 6 25 Address board 23 How to set branch number SW14 (Series R2 only) Match the indoor unit’s refrigerant pipe with the BC contoller’s end connection number Remain other than series R2 at "0". 45 6 F01 23 SW14 Before power supply ON 78 SW11 90 1 78 SW12 BCDE 78 78 1 How to set address Example : If address is "3", remain SW12 (for over 10) at "0", and match SW11 (for 1 to 9) with "3". 23 789A Rotary switch 45 6 10 45 6 Rotary switch 90 1 789A SW11 90 1 Address can be set while the unit is stopped. <Initial setting> 45 6 SW12 23 SW14 Branch No. setting <Initial setting> * In this model it is not necessary to change SWC to the option side. Address board 23 SW12 10ths digit address setting (Standard) 23 SW11 1s digit address setting (Option) 2 45 6 SWC Option selector J41, J42 Wireless remote controller Pair No. Jumper Switch Pole Effective timing Operation by switch • To operate each indoor unit by each remote controller when installed 2 indoor units or more are near, Pair No. setting is necessary. Pair No. setting is available with the 4 patterns (Setting patters A to D). Make setting for J41, J42 of indoor controller board and the Pair No. of wireless remote controller. • You may not set it when operating it by 1 remote controller. Setting for indoor unit Jumper wire J41, J42 on the indoor controller board are cut according to the table below. Wireless remote controller pair number: Setting operation 1. Press the SET button (using a pointed implement). Check that the remote controller's display has stopped before continuing. MODEL SELECT flashes, and the model No. (3 digits) appears (steadily-lit). 2. Press the MINUTE button twice. The pair number appears flashing. 3. Press the temperature buttons to select the pair number to set. 4. Press the SET button (using a pointed implement). The set pair number is displayed (steadily-lit) for 3 seconds, then disappears. Setting pattern Indoor controller Jumper wire Remarks <Initial setting> Pattern A Pair No. MODEL SELECT MODE FAN AUTO STOP VANE AUTO START h CHECK LOUVER min TEST RUN SET Temperature button TEMP ON/OFF Under operation or suspension Model No. RESET Minute button CLOCK SET button Pair No. of wireless remote controller J41 J42 A — — 0 Factory setting B Cut — 1 — C — Cut 2 — D Cut Cut 3 — Pair No.4-9 of wireless remote controller is setting pattern D. SWE Test run for Drain pump (Option) Connector Drain pump and fan are activated simultaneously after the connector SWE is set to ON and turn on the power. SWE OFF <Initial setting> SWE ON OFF SWE Under operation ON The connector SWE is set to OFF after test run. 26 OFF ON 7-3. TEST POINT DIAGRAM 7-3-1. Indoor controller board PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E CN60 CN6Y Linear expansion valve (LEV) output 12VDC pulse output i-see sensor motor output 12VDC pulse output CN3A CN4Y Connect to the terminal block (TB15) (MA-Remote controller connecting wire) - : 8.7-13V DC (Pin (+)) i-See sensor CN52 Remote indicator CNV CN51 Vane motor output 12VDC pulse Centrally controlled CN32 Remote switch CN44 Pipe temperature thermistor : Liquid (TH22) : Gas (TH23) Jumper wire J41, J42 Pair No.setting for wireless remote controller CN4F LED2 Drain float switch (FS) Power supply for MA-Remote controller CN20 Room temperature thermistor (TH21) SW3 Function setting CN27 SW4 Damper signal output 12VDC( : +) Model selection SWE Test run(Drain pump) CN90 Connect to the wireless remote controller board (W.B) SW2 Capacity setting LED1 Main power supply (Indoor unit : 208-230V) CN2M Connect to the terminal block (TB5) (M-NET transmission connecting wire) 24-30VDC (non-polar) CNMF Connect to the fan motor (MF) : : : : DC294~325V DC15V DC0~6V DC0 or DC15V (Stop) DC7.5V (Operation) (12VDC pulse) CND CNP Drain pump output (DP) Power supply for indoor controller board : 208-230VAC : 208-230VAC FUSE 6.3A 250V 27 7-3-2. Address board PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E SWA SW1 Ceiling height selector Function setting SW12 Address setting 10ths DIGIT SW11 Address setting 1st DIGIT SWC SW14 Option selector Branch No. 28 8 DISASSEMBLY PROCEDURE PCFY-P15NKMU-E PCFY-P24NKUM-E PCFY-P30NKMU-E PCFY-P36NKMU-E Be careful when removing heavy parts. (Photo: PCFY-P36NKMU-E) OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the air intake grille (1) Slide the air intake grille holding knobs (at 2 or 3 locations) to the rear to open the air intake grille. (See Figure 1) (2) While the air intake grille left open, push the stoppers on the rear hinges (at 2 or 3 locations) to pull out the air intake grille. (See Figure 2) Figure 1 Figure 2 slide Air intake grille Air intake grille holding knobs hinges Pull out the air intake grille 2. Removing the indoor controller board and the electrical box (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover. (4) Remove 2 screws from the electrical box and pull the electrical box downward. Temporarily secure the electrical box using 2 hooks in the back of electrical box. (5) Disconnect the connectors on the indoor controller board. Photo 1 [Removing the electrical box] (6) Disconnect the wires from the terminal blocks and pull out the electrical box. (See Photo 2) Photo 2 Electrical cover Beam Electrical cover fixing screws [Removing the indoor controller board] (6) Remove the 6 supports from the indoor controller board and remove the indoor controller board. (See Photo 3) Electrical box Electrical box fixing screw Photo 3 Room temperature thermistor (TH21) Indoor controller board (I.B.) Terminal blocks (TB2),(TB5),(TB15) 29 OPERATING PROCEDURE 3. Removing the room temperature thermistor (TH21) (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover. (4) Remove 2 screws from the electrical box and pull the electrical box downward. Temporarily secure the electrical box using 2 hooks in the back of electrical box. (5) Disconnect the connector CN20 (red) from the indoor controller board. (6) Remove the sensor holder from the electrical box and remove the thermistor form the holder. PHOTOS & ILLUSTRATIONS Photo 4 Casing Room temperature thermistor (TH21) Electrical box Photo 5 4. Removing the fan motor and right side fan (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover. (4) Remove 2 screws from the electrical box and pull the electrical box downward. (5) Temporarily secure the electrical box using 2 hooks in the back of electrical box. (6) Remove the lower casing while pressing the 4 catches of the casing (right side of the fan motor). (See Photo 6) (7) Loosen the 2 set screws (2 hexagon set screws) of connecting joint and slide the fan motor to the left. (See Photo 5) (8) Remove the screw for motor earth wire. (See Photo 5) (9) Remove the motor piece (left and right, each 1 screw). (See Photo 5) (10) Remove the fan motor and right side fan together. (11) Loosen the set screw (hexagon set screw) of fan and remove the fan from the shaft. (See Photo 7,8) Motor piece fixing screws Connecting joint Casing Set screws Motor earth wire fixing screw Fan motor Electrical box Casing Photo 6 Casing Catch Catch Photo 8 Catch Photo 7 Hexagon set screw 30 Hole for driver OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 5. Removing the fan (3 connection) (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover. (4) Remove 2 screws from the electrical box and pull the electrical box downward. Temporarily secure the electrical box using 2 hooks in the back of electrical box. (5) Remove 2 screws from the left side beam and remove the beam. (See Photo 9) (6) Loosen 2 set screws (2 hexagon set screws) of connecting joint. (See Photo 5) (7) Remove 3 lower casings while pressing each 4 catches of the casing. (See Photo 6) (8) Remove the 4 screws from the bearing support. (See Photo 10) (9) Slide the connecting joint to the left and remove the fans and shaft together. (See Photo 11) (10) Remove the fan from the shaft. (See Photo 7,8 ) Beam Photo 10 Bearing support Shaft Bearing support fixing screws Photo 11 Fan (3 connection) Bearing support Photo 9 Shaft 6. Removing the side panel (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the screw from the side panel, and remove the side panel by sliding the panel to the front. Figure 3 Side panel (Right) Sliding the panel to the front Side panel (Left) Screw 31 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 12 7. Removing the vane motor (1) Remove the air intake. (See Figure 1,2) (2) Remove the right side panel. (See Figure 3) (3) Remove the connector of vane motor. (4) Remove 2 screws of vane motor cover , then remove vane motor. Vane motor and cover Connector Screws 8. Removing the under panel (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the left and right side panels. (See Figure 3) (3) Remove the beam. (See Photo 1) (4) Remove the electrical cover. (See Photo 1) (5) Pull the electrical box downward. (See Photo 2) (6) (Wireless remote controller receiver type only) Disconnect the connector CNB from the PCB for wireless remote controller and remove the clamp and strap for wires. (7) Remove 8 screws from the under panel. (8) Move the under panel forward by about 7/16in. (10mm) and remove the under panel. Photo 13 9. Removing the drain pan (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the side panel (right and left). (See Figure 3) (3) Remove the under panel. (See Photo 13) Remove the screws of the right and left side drain pan. (See Photo 14) (4) Remove 2 insulation in centre of the drain pan, and after removing 2 screws with washer, remove the drain pan. (See Photo 15,16) Photo 14 Under panel fixing screws Pipe cover fixing screws Drain pan fixing screws (left and right each 1 screw) (Note) Please be aware that there might be some drainage left in the drain pan when you remove the drain pan. Drain pan Photo 15 Vane Photo 16 Screw with washer (2 locations) 32 Insulations OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 10. Removing the pipe thermistors/Liquid (TH22) and Gas (TH23) (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the left and right side panels. (See Figure 3) (3) Remove the under panel. (See Photo 13) (4) Remove the drain pan. (See Photo 14, 15, 16) (5) Disconnect the connector CN44 (white) from the indoor controller board. (6) Remove 6 screws from the pipe cover and remove the pipe cover. (See Photo 14, 17) (7) Remove the fastener for wires and remove the thermistors (liquid and gas) from each holder. (See Photo 18) Photo 17 Pipe cover fixing screws Pipe cover fixing screws (See Photo 15) Pipe cover Photo 18 Gas pipe thermistor Liquid pipe thermistor Fastener 11. Removing the guide vane (1) Remove the intake grille. (See Figure 1,2) (2) Remove the side panel (right and left). (See Figure 3) (3) Remove the under panel. (See Photo 13) (4) Remove the drain pan. (See Photo 14, 15,16) (5) Remove the screw from the guide vane, then remove the guide vane. Photo 19 Screw Drain pan Guide vane 12. Removing the Auto vane (1) Remove the intake grille. (See Figure 1,2) (2) Remove the right side panel. (See Figure 3) (3) Remove the vane motor and cover. (See Photo 12) (4) Slide the auto vane to the vane motor side. (5) Remove 2 axes from each vane support pushing the vane support to the vane sleeve side. 33 Photo 20 Vane sleeve Vane support Vane Vane motor side OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 21 13. Removing the heat exchanger and LEV (1) Remove the air intake grille. (See Figure 1,2) (2) Remove the beam. (See Photo 1) (3) Remove the electrical cover. (See Photo 1) (4) Pull the electrical box downward. (See Photo 2) (5) Disconnect the connector CN60 (white) from the indoor controller board. (6) Remove the left and right side panels. (See Figure 3) (7) Remove the under panel. (See Photo 13) (8) Remove the drain pan. (See Photo 14,15,16) (9) Remove the pipe cover. (See Photo 17) (10) Remove the pipe thermistors (TH22 and TH23) from each holder. (See Photo 18) (11) Remove the pipe band fixing screw and remove the pipe band. (See Photo 21) (12) Remove 2 screws from the heat exchanger and remove the heat exchanger with LEV. Heat exchanger Pipe band Pipe band fixing screw Photo 22 Heat exchanger fixing screws Heat exchanger 34 Vane 35 TM HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN Copyright 2009 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Feb. 2009 No. OCH450 PDF 7 Made in Japan New publication, effective Feb. 2009 Specifications subject to change without notice